int __shgetc(FILE *f) { int c; if (f->shlim && f->shcnt >= f->shlim || (c=__uflow(f)) < 0) { f->shend = 0; return EOF; } if (f->shlim && f->rend - f->rpos > f->shlim - f->shcnt - 1) f->shend = f->rpos + (f->shlim - f->shcnt - 1); else f->shend = f->rend; if (f->rend) f->shcnt += f->rend - f->rpos + 1; return c; }
_IO_size_t _IO_getline_info (_IO_FILE *fp, char *buf, _IO_size_t n, int delim, int extract_delim, int *eof) { char *ptr = buf; if (eof != NULL) *eof = 0; if (__builtin_expect (fp->_mode, -1) == 0) _IO_fwide (fp, -1); while (n != 0) { _IO_ssize_t len = fp->_IO_read_end - fp->_IO_read_ptr; if (len <= 0) { int c = __uflow (fp); if (c == EOF) { if (eof) *eof = c; break; } if (c == delim) { if (extract_delim > 0) *ptr++ = c; else if (extract_delim < 0) _IO_sputbackc (fp, c); if (extract_delim > 0) ++len; return ptr - buf; } *ptr++ = c; n--; } else { char *t; if ((_IO_size_t) len >= n) len = n; t = (char *) memchr ((void *) fp->_IO_read_ptr, delim, len); if (t != NULL) { _IO_size_t old_len = ptr-buf; len = t - fp->_IO_read_ptr; if (extract_delim >= 0) { ++t; if (extract_delim > 0) ++len; } memcpy ((void *) ptr, (void *) fp->_IO_read_ptr, len); fp->_IO_read_ptr = t; return old_len + len; } memcpy ((void *) ptr, (void *) fp->_IO_read_ptr, len); fp->_IO_read_ptr += len; ptr += len; n -= len; } } return ptr - buf; }
extern __inline __attribute__ ((__gnu_inline__)) int getchar_unlocked (void) { return (__builtin_expect (((stdin)->_IO_read_ptr >= (stdin)->_IO_read_end), 0) ? __uflow (stdin) : *(unsigned char *) (stdin)->_IO_read_ptr++); }
extern __inline __attribute__ ((__gnu_inline__)) int getc_unlocked (FILE *__fp) { return (__builtin_expect (((__fp)->_IO_read_ptr >= (__fp)->_IO_read_end), 0) ? __uflow (__fp) : *(unsigned char *) (__fp)->_IO_read_ptr++); }